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1950 SERIES - COMPACT SMART SYSTEM 5-DIGIT PROCESS METER
THREE SELECTABLE D.C. RANGES
0 to 10 V, 0(4) to 20 mA, 0 to 50 mA
MINIMUM AND MAXIMUM DISPLAY CAPTURE
LCD, REFLECTIVE OR RED/GREEN LED BACKLIGHTING
0.48" (12.2 mm) HIGH DIGITS
OPTIONAL SETPOINT OUTPUT MODULES
OPTIONAL SERIAL COMMUNICATIONS MODULES (RS232 or RS485)
OPERATES FROM 9 TO 28 VDC POWER SOURCE
FRONT PANEL OR CRIMSON PROGRAMMABLE
DISPLAY COLOR CHANGE CAPABILITY AT SETPOINT OUTPUT
NEMA 4X/IP65 SEALED FRONT BEZEL
GENERAL DESCRIPTION
SAFETY SUMMARY
The 1950 Series provides the user the ultimate in flexibility, from its
complete user programming to the optional setpoint control and communicationcapability. The 1950 accepts a DC voltage or current input signal and provides a
display in the desired unit of measure. The meter also features minimum and
maximum display capture, display offset, units indicator, and programmableuser input. The display can be toggled either manually or automatically between
the selected displays.
The 1950 display has 0.48" (12.2 mm) high digits. The LCD is available in two
versions, reflective or red/green backlight. The backlight version is user
selectable for the desired color and also has variable display intensity.
The capability of the 1 9 5 0 can be easily expanded with the addition of
option modules. The setpoint output cards are field installable with
programmable setpoints. Serial communications capability for RS232 or RS485
can be added with a serial option module.
The 1 9 5 0 can be powered from an optional N O S H O K MicroLine/SensorPower Supply (PS3), which attaches directly to the back of a 1950.
The PS3 is powered from 85 to 250 VAC and provides up to 400 mA to drive the
unit and sensors.
All safety related regulations, local codes and instructions that appear in this
literature or on equipment must be observed to ensure personal safety and to
prevent damage to either the instrument or equipment connected to it. If
equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.
Do not use this meter to directly command motors, valves, or other actuators
not equipped with safeguards. To do so can be potentially harmful to persons or
equipment in the event of a fault to the meter.
CAUTION: Risk of Danger.
Read complete instructions prior to
installation and operation of the unit.
CAUTION: Risk of electric shock.
INPUT
The 1950 is a DC Process meter. It features voltage and current input ranges,
that are selected by the user via a programming jumper and software input range
selection. The ranges consist of the following: 0 to 10 V, 0(4) to 20mA, or 0 to
50 mA. Users should select the appropriate voltage range that covers their
maximum input.
DIMENSIONS In Inches (mm)
Note: Recommended minimum clearance (behind the panel) for mounting clip installation is 2.15" (54.6) H x 3.00" (76.2) W.
1
GENERAL METER SPECIFICATIONS
Storage Temperature: -35 to 85°C
Operating and Storage Humidity: 0 to 85% max. relative humidity (noncondensing)
Vibration According to IEC 68-2-6: 5 to 500 Hz, in X, Y, Z direction for 1.5
hours, 5 g’s.
Shock According to IEC 68-2-27: Operational 30 g, 11 msec in 3 directions.
Altitude: Up to 2000 meters
13. CERTIFICATIONS AND COMPLIANCES:
IEC 61010-1, EN 61010-1: Safety requirements for electrical equipment
for measurement, control, and laboratory use, Part 1.
IP65 Enclosure rating (Face only), IEC 529
ELECTROMAGNETIC COMPATIBILITY
Emissions and Immunity to EN 61326: Electrical Equipment for
Measurement, Control and Laboratory use.
Immunity to Industrial Locations:
Electrostatic discharge
EN 61000-4-2 Criterion A
4 kV contact discharge
8 kV air discharge
Electromagnetic RF fields
EN 61000-4-3 Criterion A
10 V/m
Fast transients (burst)
EN 61000-4-4 Criterion A
2 kV power
1 kV signal
Surge
EN 61000-4-5 Criterion A
1 kV L-L,
2 kV L&N-E power
RF conducted interference
EN 61000-4-6 Criterion A
3 V/rms
Power frequency magnetic fields EN 61000-4-8 Criterion A
30 A/m
Emissions:
Emissions
EN 55011
Class A
1. DISPLAY: 5 digit LCD 0.48" (12.2 mm) high digits
1950X-1 : Reflective LCD with full viewing angle
1950X-2 : Transmissive LCD with selectable red or green LED backlight,
viewing angle optimized. Display color change capability with output state
when using an output module.
2. POWER: Input voltage range is +9 to +28 VDC with short circuit and input
polarity protection. Must use an NOSHOK model PS3 or a Class 2 or SELV
rated power supply.
MODEL
NO.
1950X-1
1950X-2
1950X-2
DISPLAY COLOR
INPUT CURRENT INPUT CURRENT
@ 9 VDC WITHOUT @ 9 VDC WITH
RELAY CARD
RELAY CARD
--Red (max intensity)
Green (max intensity)
10 mA
85 mA
95 mA
40 mA
115 mA
125 mA
3. INPUT RANGES: Jumper Selectable
0 to 10 V, 0(4) to 20 mA, 0 to 50 mA
4. SENSOR INPUTS:
INPUT
RANGE
ACCURACY
INPUT
MAX INPUT
TEMP.
@23 °C, less
RESOLUTION
IMPEDANCE SIGNAL
COEFFICIENT
than 85% RH
20 / 50 mA 0.1% of span
10 VDC 0.1% of span
10 :
538 K:
150 mA
30 V
1 μA
1 mV
70 ppm / °C
70 ppm / °C
5. OVERRANGE RATINGS, PROTECTION & INDICATION:
9 to 28 VDC power circuit is not isolated from the signal circuit.
Input Overrange Indication: “OLOL ”.
Input Underrange Indication: “ULUL”.
Display Overrange/Underrange Indication: “.....”/“-.....”
6. DISPLAY RESPONSE TIME: 500 msec min.
7. NORMAL MODE REJECTION: 60 dB 50/60 Hz
8. USER INPUT (USR): Programmable input. Connect USR terminal to USR
COMM to activate function. Internal 10K: pull-up resistor to +9 to 28 VDC.
Threshold Levels: VIL = 1.0 V max; VIH = 2.4 V min; VMAX = 28 VDC
Response Time: 5 msec typ.; 50 msec debounce (activation and release)
9. CONNECTIONS: Wire clamping screw terminals
Wire Strip Length: 0.3" (7.5 mm)
Wire Gage: 30-14 AWG copper wire
Torque: 5 inch-lbs (0.565 N-m) max.
10. MEMORY: Nonvolatile E2PROM memory retains all programming
parameters and max/min values when power is removed.
11. CONSTRUCTION: This unit is rated for NEMA 4X/IP65 requirements for
indoor use. Installation Category I, Pollution Degree 2. High impact plastic
case with clear viewing window. Panel gasket and mounting clip included.
12. ENVIRONMENTAL CONDITIONS:
Operating Temperature Range for 1950X-1 : -35 to 75°C
Operating Temperature Range for 1950X-1/1950X-2 depends on display
color and intensity level as per below
:
INTENSITY LEVEL
Red Display
Green Display
1&2
3
4
5
1&2
3
4
5
Notes:
1. Criterion A: Normal operation within specified limits.
Refer to EMC Installation Guidelines for additional information.
14. WEIGHT: 3.2 oz (100 g)
TEMPERATURE
-35
-35
-35
-35
-35
-35
-35
-35
to
to
to
to
to
to
to
to
75°C
70°C
60°C
50°C
75°C
65°C
50°C
35°C
2
OPTIONAL PLUG-IN CARDS
ADDING OPTION CARDS
The 1950 meters can be fitted with optional output cards and/or serial
communications cards. The details for the plug-in cards can be reviewed in the
specification section below. The plug-in cards, that are sold separately, can be
installed initially or at a later date.
DUAL SINKING OUTPUT CARD
Type: Non-isolated switched DC, N Channel open drain MOSFET
Current Rating: 100 mA max.
VDS ON: 0.7 V @ 100 mA
VDS MAX: 30 VDC
Offstate Leakage Current: 0.5 mA max.
WARNING: Disconnect all power to the unit before
installing Plug-in card.
RS485 SERIAL COMMUNICATIONS CARD
Type: RS485 multi-point balanced interface (non-isolated)
Baud Rate: 300 to 38.4k
Data Format: 7/8 bits; odd, even, or no parity
Bus Address: 0 to 99; max 32 meters per line
Transmit Delay: Selectable
Note: Measurement errors may occur if signal input common is shared with
another circuit common (ie, serial common, Dual Sinking Output option card,
or Power Supply common) on multiple units.
SINGLE RELAY CARD
Type: Single FORM-C relay
Isolation To Sensor & User Input Commons: 1400 Vrms for 1 min.
Working Voltage: 150 Vrms
Contact Rating: 1 amp @ 30 VDC resistive; 0.3 amp @ 125 VAC resistive
Life Expectancy: 100,000 minimum operations
Response Time:
Turn On Time: 4 msec max.
Turn Off Time: 4 msec max.
1.0 INSTALLING
THE
RS232 SERIAL COMMUNICATIONS CARD
Type: RS232 half duplex (non-isolated)
Baud Rate: 300 to 38.4k
Data Format: 7/8 bits; odd, even, or no parity
METER
INSTALLATION
While holding the unit in place, push the panel latch over the rear of the unit
so that the tabs of the panel latch engage in the slots on the case. The panel latch
should be engaged in the farthest forward slot possible. To achieve a proper seal,
tighten the latch screws evenly until the unit is snug in the panel (Torque to
approx. 28 to 36 in-oz [0.202 to 0.26 N-m]). Do not over-tighten the screws.
The meter meets NEMA 4X/IP65 requirements when properly installed. The
unit is intended to be mounted into an enclosed panel. Prepare the panel cutout
to the dimensions shown. Remove the panel latch from the unit. Slide the panel
gasket over the rear of the unit to the back of the bezel. The unit should be
installed fully assembled. Insert the unit into the panel cutout.
INSTALLATION ENVIRONMENT
The unit should be installed in a location that does not exceed the operating
temperature and provides good air circulation. Placing the unit near devices that
generate excessive heat should be avoided.
The bezel should only be cleaned with a soft cloth and neutral soap product.
Do NOT use solvents. Continuous exposure to direct sunlight may accelerate the
aging process of the bezel.
Do not use tools of any kind (screwdrivers, pens, pencils, etc.) to operate the
keypad of the unit.
2.0 SETTING
THE
JUMPERS
INPUT RANGE JUMPER
This jumper is used to select the proper input range. The input range selected
in programming must match the jumper setting. Select a range that is high
enough to accommodate the maximum input signal to avoid overloads. To
access the jumper, remove the rear cover of the meter.
Warning: Exposed line voltage exists on the circuit boards. Remove
all power to the meter and load circuits before accessing inside of
the meter.
REMOVING THE REAR COVER
To remove the rear cover, locate the cover locking tab below the 2nd and 3rd
input terminals. To release the tab, insert a small, flat blade screwdriver between
the tab and the plastic wall below the terminals. Inserting the screwdriver will
provide enough pressure to release the tab locks. To replace the cover, align the
cover with the input terminals and press down until the cover snaps into place.
3
3.0 INSTALLING PLUG-IN CARDS
The Plug-in cards are separately purchased option cards that perform specific
functions. The cards plug into the main circuit board of the meter
CAUTION: The Plug-in cards and main circuit board contain static
sensitive components. Before handling the cards, discharge
static charges from your body by touching a grounded bare
metal object. Ideally, handle the cards at a static controlled
clean workstation. Also, only handle the cards by the edges.
Dirt, oil or other contaminants that may contact the cards can
adversely affect circuit operation.
Range Jumpers
Setpoint Card
REMOVING THE REAR COVER
Comms Card
To remove the rear cover, locate the cover locking tab below the 2nd and 3rd
input terminals. To release the tab, insert a small, flat blade screwdriver between
the tab and the plastic wall below the terminals. Inserting the screwdriver will
provide enough pressure to release the tab locks. To replace the cover, align the
cover with the input terminals and press down until the cover snaps into place.
Locking Tab
4.0 WIRING
THE
METER
c. Connect the shield to common of the meter and leave the other end of the
shield unconnected and insulated from earth ground.
3. Never run Signal or Control cables in the same conduit or raceway with AC
power lines, conductors feeding motors, solenoids, SCR controls, and
heaters, etc. The cables should be ran in metal conduit that is properly
grounded. This is especially useful in applications where cable runs are long
and portable two-way radios are used in close proximity or if the installation
is near a commercial radio transmitter.
4. Signal or Control cables within an enclosure should be routed as far as possible
from contactors, control relays, transformers, and other noisy components.
5. In extremely high EMI environments, the use of external EMI suppression
devices, such as ferrite suppression cores, is effective. Install them on Signal
and Control cables as close to the unit as possible. Loop the cable through the
core several times or use multiple cores on each cable for additional protection.
Install line filters on the power input cable to the unit to suppress power line
interference. Install them near the power entry point of the enclosure. The
following EMI suppression devices (or equivalent) are recommended:
Ferrite Suppression Cores for signal and control cables:
Fair-Rite # 0443167251
TDK # ZCAT3035-1330A
Steward # 28B2029-0A0
Line Filters for input power cables:
Schaffner # FN610-1/07
Schaffner # FN670-1.8/07
Corcom # 1 VR3
Note: Reference manufacturer’s instructions when installing a line filter.
6. Long cable runs are more susceptible to EMI pickup than short cable runs.
Therefore, keep cable runs as short as possible.
7. Switching of inductive loads produces high EMI. Use of snubbers across
inductive loads suppresses EMI.
WIRING OVERVIEW
Electrical connections are made via screw-clamp terminals located on the
back of the meter. All conductors should conform to the meter’s voltage and
current ratings. All cabling should conform to appropriate standards of good
installation, local codes and regulations. It is recommended that the power
supplied to the meter (DC or AC) be protected by a fuse or circuit breaker.
Strip the wire, leaving approximately 0.3" (7.5 mm) bare lead exposed
(stranded wires should be tinned with solder.) Insert the lead under the correct
screw-clamp terminal and tighten until the wire is secure. (Pull wire to verify
tightness.) Each terminal can accept up to one #14 AWG (2.55 mm) wire, two
#18 AWG (1.02 mm), or four #20 AWG (0.61 mm).
EMC INSTALLATION GUIDELINES
Although this meter is designed with a high degree of immunity to ElectroMagnetic Interference (EMI), proper installation and wiring methods must be
followed to ensure compatibility in each application. The type of the electrical
noise, source or coupling method into the meter may be different for various
installations. The meter becomes more immune to EMI with fewer I/O
connections. Cable length, routing, and shield termination are very important
and can mean the difference between a successful or troublesome installation.
Listed below are some EMC guidelines for successful installation in an
industrial environment.
1. The meter should be mounted in a metal enclosure, which is properly
connected to protective earth.
2. Use shielded (screened) cables for all Signal and Control inputs. The shield
(screen) pigtail connection should be made as short as possible. The
connection point for the shield depends somewhat upon the application.
Listed below are the recommended methods of connecting the shield, in order
of their effectiveness.
a. Connect the shield only at the panel where the unit is mounted to earth
ground (protective earth).
b. Connect the shield to earth ground at both ends of the cable, usually when
the noise source frequency is above 1 MHz.
4.1 POWER WIRING
4.2 USER INPUT WIRING
DC Power
Sinking Logic
+9 to +28 VDC: +VDC
Power Common: -VDC
USR COMM
USR
external switching device between the
}Connect
User Input terminal and User Input Common.
The user input of the meter is
internally pulled up to +9 to +28 V
with 10 K resistance. The input is
active when it is pulled low (<0 .7 V).
CAUTION: 9 to 28 VDC
power circuit is not isolated
from the signal circuit.
4
5.0 REVIEWING
BUTTON
THE
FRONT BUTTONS
AND
DISPLAY
DISPLAY MODE OPERATION
ENTERING PROGRAM MODE
PROGRAMMING MODE OPERATION
SEL
Index display through enabled values
Press and hold for 2 seconds to activate
Store selected parameter and index to next parameter
RST
Resets values (MIN/MAX) or outputs
Advances through the program menu
Increments selected parameter value or selection
OPERATING MODE DISPLAY DESIGNATORS
“1” - To the right of the display indicates setpoint 1 output activated.
“2” - To the right of the display indicates setpoint 2 output activated.
MAX - Maximum display capture value
MIN - Minimum display capture value
Pressing the SEL button toggles the meter through the selected displays. If display scroll is enabled, the display will toggle automatically every four seconds between
the enabled display values.
6.0 PROGRAMMING
THE
METER
OVERVIEW
PROGRAMMING MENU
PROGRAMMING MODE ENTRY (SEL BUTTON)
PROGRAMMING MODE EXIT (SEL BUTTON)
It is recommended all programming changes be made off line, or before
installation. The meter normally operates in the Display Mode. No parameters
can be programmed in this mode. The Programming Mode is entered by
pressing and holding the SEL button. If it is not accessible then it is locked by
either a security code, or a hardware lock.
The Programming Mode is exited by pressing the SEL button with Pro NO
displayed. This will commit any stored parameter changes to memory and
return the meter to the Display Mode. (If power loss occurs before returning to
the Display Mode, verify recent parameter changes.)
PROGRAMMING TIPS
MODULE ENTRY (SEL & RST BUTTONS)
It is recommended to start with Module 1 and proceed through each module in
sequence. When programming is complete, it is recommended to record the
parameter programming and lock out parameter programming with the user input
or programming security code.
The Programming Menu is organized into separate modules. These modules
group together parameters that are related in function. The display will alternate
between Pro and the present module. The RST button is used to select the desired
module. The displayed module is entered by pressing the SEL button.
FACTORY SETTINGS
MODULE MENU (SEL BUTTON)
Factory Settings may be completely restored in Module 2. This is useful
when encountering programming problems.
Each module has a separate module menu (which is shown at the start of each
module discussion). The SEL button is pressed to advance to a particular
parameter to be changed, without changing the programming of preceding
parameters. After completing a module, the display will return to Pro NO.
Programming may continue by accessing additional modules.
ALTERNATING SELECTION DISPLAY
In the explanation of the modules, the following dual display with arrows will
appear. This is used to illustrate the display alternating between the parameter
on top and the parameter’s Factory Setting on the bottom. In most cases,
selections and values for the parameter will be listed on the right.
SELECTION / VALUE ENTRY
For each parameter, the display alternates between the present parameter and
the selections/value for that parameter. The RST button is used to move through
the selections/values for that parameter. Pressing the SEL button, stores and
activates the displayed selection/value. This also advances the meter to the next
parameter.
For numeric values, press the RST button to access the value. The right hand
most digit will begin to flash. Pressing the RST button again increments the
digit by one or the user can hold the RST button and the digit will automatically
scroll. The SEL button will advance to the next digit. Pressing and holding the
SEL button will enter the value and move to the next parameter.
Indicates Program Mode Alternating Display
Parameter
USrIN
ª
«
N0
Selection/Value
Factory Settings are shown.
6
6.1 MODULE 1 - SIGNAL INPUT PARAMETERS (1-INP)
PARAMETER MENU
SCALING STYLE
1950 INPUT RANGE
rAN6E
ª
«
10u
SELECTION
10u
RANGE
RESOLUTION
SELECTION
0.02A
0.05A
10.000 V
StYLE
RANGE
RESOLUTION
ª
20.000 mA
50.000 mA
«
KEy
APLY
KEy
If Input Values and corresponding Display Values are known, the Key-in
(KEY) scaling style can be used. This allows scaling without the presence or
changing of the input signal. If Input Values have to be derived from the actual
input signal source or simulator, the Apply (APLY) scaling style must be used.
Select the input range that corresponds to the external signal. This selection
should be high enough to avoid input signal overload but low enough for the
desired input resolution. This selection and the position of the Input Range
Jumper must match.
INPUT VALUE FOR SCALING POINT 1
DISPLAY DECIMAL POINT
dECPt
ª
«
0
0.0
0.00
0.000
INP 1 «
ª 0.000
0.0000
0.000
For Key-in (KEY) style, enter the known first Input Value using the front panel
buttons. (The Input Range selection sets the decimal location for the Input
Value).
For Apply (APLY) style, the meter shows the previously stored Input Value. To
retain this value, press the SEL button to advance to the next parameter. To
change the Input Value, press the RST button and apply the input signal to the
meter. Adjust the signal source externally until the desired Input Value appears.
Press the SEL button to enter the value being displayed.
Select the decimal point location for the Input, MIN and MAX displays. This
selection also affects the dSP1 and dSP2 parameters and setpoint values.
DISPLAY OFFSET VALUE
OFSEt
ª
«
0.000
0 to 59999
-19999 to 19999
DISPLAY VALUE FOR SCALING POINT 1
dSP 1 «
ª 0.000
The display can be corrected with an offset value. This can be used to
compensate for signal variations or sensor errors. This value is automatically
updated after a Zero Display to show how far the display is offset. A value of
zero will remove the effects of offset.
-19999 to 99999
Enter the first Display Value using the front panel buttons. This is the same
for KEY and APLY scaling styles. The decimal point follows the dECPt selection.
FILTER SETTING
FILtr
ª
«
INPUT VALUE FOR SCALING POINT 2
0,1 2 3
INP 2 «
ª 10.000
1
0 to 59999
If the displayed value is difficult to read due to small process variations or
noise, increased levels of filtering will help to stabilize the display. Software
filtering effectively combines a fraction of the current input reading with a
fraction of the previous displayed reading to generate the new display.
Filter values represent no filtering (0), up to heavy filtering (3). A value of 1
for the filter uses 1/4 of the new input and 3/4 of the previous display to generate
the new display. A filter value of 2 uses 1/8 new and 7/8 previous. A filter value
of 3 uses 1/16 new and 15/16 previous.
For Key-in (KEY) style, enter the known second Input Value using the front
panel buttons.
For Apply (APLY) style, the meter shows the previously stored Input Value for
Scaling Point 2. To retain this value, press the SEL button to advance to the next
parameter. To change the Input Value, press the RST button and apply the input
signal to the meter. Adjust the signal source externally until the desired Input
Value appears. Press the SEL button to enter the value being displayed.
FILTER BAND
DISPLAY VALUE FOR SCALING POINT 2
bANd
ª
«
dSP 2 «
ª 10.000
0 to 199 display units
10
-19999 to 99999
Enter the second Display Value using the front panel buttons. This is the same
for KEY and APLY scaling styles.
The filter will adapt to variations in the input signal. When the variation
exceeds the input filter band value, the filter disengages. When the variation
becomes less than the band value, the filter engages again. This allows for a
stable readout, but permits the display to settle rapidly after a large process
change. The value of the band is in display units, independent of the Display
Decimal Point position. A band setting of ‘0’ keeps the filter permanently
engaged at the filter level selected above.
General Notes on Scaling
1. When using the Apply (APLY) scaling style, input values for scaling points
must be confined to signal limits of the selected range.
2. The same Input Value should not correspond to more than one Display Value.
(Example: 10 V can not equal 0 and 10.)
3. For input levels beyond the programmed Input Values, the meter extends the
Display Value by calculating the slope from the two coordinate pairs (INP1 /
dSP1 & INP2 / dSP2).
7
USER INPUT FUNCTION
USrIN
ª
DISPLAY MODE
«
NO
DISPLAY MODE
DESCRIPTION
NO
P-Loc
No Function
ZErO
rESEt
Zero Input
(Edge triggered)
d-HLd
Display Hold
d-SEL
d-LEV
COLOr
Display Select
(Edge Triggered)
Display Intensity Level
(Edge Triggered)
Backlight Color
(Edge Triggered)
User Input disabled.
Program Mode Lock-out
Reset (Edge triggered)
See Programming Mode Access chart
(Module 3).
Zero the Input Display value causing
Display Reading to be Offset.
Resets the assigned value(s) to the
current input value.
DESCRIPTION
Print
Print Request
Serial transmit of the active parameters
selected in the Print Options menu
(Module 5).
P-r5t
rSt-1
rSt-2
rSt12
Print and Reset
Same as Print Request followed by a
momentary reset of the assigned value(s).
Setpoint 1 Reset
Resets setpoint 1 output.
Setpoint 2 Reset
Resets setpoint 2 output.
Setpoint 1 and 2 Reset
Reset both setpoint 1 and 2 outputs.
USER INPUT ASSIGNMENT
Holds the assigned display, but all other
meter functions continue as long as
activated (maintained action).
U-ASN
ª
Advance once for each activation.
«
dSP
HI
LO
HI-LO
dSP
Select the value(s) to which the User Input Function is assigned. The User
Input Assignment only applies if a selection of reset, display hold, or print and
reset is selected in the User Input Function menu.
Increase intensity one level for each
activation (backlight version only).
Change backlight color with each
activation (backlight version only).
6.2 MODULE 2 - SECONDARY FUNCTION PARAMETERS (2-SEC)
PARAMETER MENU
MAX DISPLAY ENABLE
HI-En
ª
«
NO
NO
RESTORE FACTORY DEFAULT SETTINGS
CodE
YES
ª
Enables the Maximum Display Capture capability.
«
66
Entering Code 66 will overwrite all user settings with
the factory settings. The meter will display rESEt and then
return to CodE 00. Press the SEL button to exit the module.
VIEW VERSION DISPLAY
HI-t
ª
«
2.0
CodE
MAX CAPTURE DELAY TIME
ª
0.0 to 999.9 sec.
The 1950 uses stored calibration values to provide
accurate voltage and current measurements. Over time,
the electrical characteristics of the components inside the
meter could slowly change, therefore the stored
calibration values may no longer accurately define the input circuit. For most
applications, recalibration every 1 to 2 years should be sufficient.
Calibration of the 1950 involves a voltage or current calibration, which
should only be performed by individuals experienced in calibrating electronic
equipment. Allow a 30 minute warm up for eqiupment and unit before
performing any calibration related procedures. The following procedures should
be performed at an ambient temperature of 15 to 35°C (59 to 95°F).
CAUTION: The accuracy of the calibration equipment will directly affect the
accuracy of the 1950..
CodE
ª
MIN DISPLAY ENABLE
ª
«
NO
NO
YES
Enables the Minimum Display Capture capability.
LO-t
ª
«
2.0
MIN CAPTURE DELAY TIME
0.0 to 999.9 sec.
FACTORY SERVICE OPERATIONS
ª
«
NO
NO
«
48
Calibration
When the Input Display is below the present MIN value for the entered delay
time, the meter will capture that display value as the new MIN reading. A delay
time helps to avoid false captures of sudden short spikes.
FCS
50
Entering Code 50 will display the version (x.x) of the
meter. The display then returns to CodE 00. Press the SEL
button to exit the module.
CALIBRATION
When the Input Display is above the present MAX value for the entered
delay time, the meter will capture that display value as the new MAX reading.
A delay time helps to avoid false captures of sudden short spikes.
LO-En
«
yES
Select yES to perform either of the Factory Service Operations shown below.
8
1. Connect the negative lead of a precision DC source with an accuracy of 0.01%
or better to the COMM. Leave the positive lead of the DC source unconnected.
2. With the display at CodE 48, press and hold the SEL button for 2 seconds. Unit
will display CAL NO.
3. Press the RST button to select the range to be calibrated.
4. Press the SEL button. Display reads 0.0A (0.0 V for voltage).
5. Apply 0 signal:
Current: leave the positive lead of the DC source unconnected.
Voltage: apply a short to the input or connect the positive lead of the DC
source to INP+ and set the source to 0.
Press SEL. Display reads CALC for about 8 seconds.
6. When the display reads the selected range (10 V, 20 mA, or 50 mA), connect
the positive lead of the DC source to INP+ and apply the full scale input signal
for the range. Press SEL. Display reads CALC for about 8 seconds.
7. Repeat steps 3 through 6 for each input range to be calibrated. When display
reads CAL NO, press the SEL button to exit calibration.
6.3 MODULE 3 - DISPLAY
AND
FRONT PANEL BUTTON
PARAMETERS (3-dSP)
PARAMETER MENU
DISPLAY UPDATE TIME
dSP-t
ª
«
1
DISPLAY COLOR (BACKLIGHT UNIT ONLY)
1
0.5
2
seconds
COLOr
ª
This parameter sets the display update time in seconds.
«
rEd
rEd
6rn
Enter the desired display color, red or green. This parameter is active for
backlight units only.
FRONT PANEL DISPLAY SELECT ENABLE (SEL)
SEL
ª
«
yES
yES
NO
DISPLAY INTENSITY LEVEL (BACKLIGHT UNIT ONLY)
The yES selection allows the SEL button to toggle through the enabled
displays.
d-LEV
ª
ª
«
dSP
NO
HI
LO
HI-LO
PROGRAMMING SECURITY CODE
CodE
ª
ZERO DISPLAY WITH DISPLAY RESET
ª
yES
«
000
000
to
999
The Security Code determines the programming mode and the accessibility
of programming parameters. This code can be used along with the Program
Mode Lock-out (P-Loc) in the User Input Function parameter (Module 1).
Two programming modes are available. Full Programming mode allows all
parameters to be viewed and modified. Quick Programming mode permits only
the Setpoint values to be modified, but allows direct access to these values
without having to enter Full Programming mode.
Programming a Security Code other than 0, requires this code to be entered
at the CodE prompt in order to access Full Programming mode. Depending on the
code value, Quick Programming may be accessible before the CodE prompt
appears (see chart).
«
NO
5
to
dSP
This selection allows the RST button to reset the selected value(s).
ZErO
1
5
Enter the desired Display Intensity Level (1-5). The display will actively dim
or brighten as levels are changed. This parameter is active for backlight units only.
FRONT PANEL RESET ENABLE (RST)
rSt
«
NO
This parameter enables the RST button or user input to zero the input display
value, causing the display reading to be offset.
Note: For this parameter to operate, the RST button or User Input being used
must be set to dSP and the Input value must be displayed. If these conditions are
not met, the display will not zero.
DISPLAY SCROLL ENABLE
ScroL
ª
USER INPUT USER INPUT SECURITY MODE WHEN “SEL”
FUNCTION
STATE
CODE
BUTTON IS PRESSED
«
NO
yES
NO
0
The yES selection allows the display to automatically scroll through the
enabled displays. The scroll rate is every 4 seconds. This parameter only appears
when the MAX or MIN displays are enabled.
not
P-Loc
______
UNITS INDICATOR SELECTION
UNItS
ª
«
OFF
OFF
LISt
Active
SEGS
1-99
Full Programming
Not Active
Immediate Access
After Quick Programming
Quick Programming with correct code entry
at CodE prompt *
100-999
CodE prompt
With correct code entry
at CodE prompt *
0
Programming Lock
No Access
1-99
Quick Programming
No Access
100-999
CodE prompt
With correct code entry
at CodE prompt *
0-999
Full Programming
Immediate Access
P-Loc
This parameter activates the Units Indicator on the display. There are two
methods of selecting the Indicator. List will present a group of Units
preprogrammed into the meter. Segments allows the user to choose which of the
segments should light.
FULL PROGRAMMING
MODE ACCESS
* Entering Code 222 allows access regardless of security code.
9
6.4 MODULE 4 - SETPOINT OUTPUT PARAMETERS (4-SPt)
PARAMETER MENU
The Setpoint Output Parameters are only active when an optional output
module is installed in the meter.
SETPOINT VALUE
SPt-n «
ª 10000
SETPOINT SELECT
SPSEL
ª
«
NO
SP-1
NO
ª
YES
99999
HYSTERESIS VALUE
HYS-n
ª
«
2
1
to
59999
Enter desired hysteresis value. See Setpoint Output Figures for visual
explanation of how setpoint output actions (balanced and unbalanced) are
affected by the hysteresis. When the setpoint is a control output, usually
balanced hysteresis is used. For alarm applications, usually unbalanced
hysteresis is used. For unbalanced hysteresis modes, the hysteresis functions on
the low side for high acting setpoints and functions on the high side for low
acting setpoints.
SETPOINT 2 ENABLE
«
to
Enter the desired setpoint value. The decimal point position for the setpoint
and hysteresis values follow the selection set in Module 1.
SP-2
Enter the setpoint (output) to be programmed. The n in the following
parameters will reflect the chosen setpoint number. After the chosen setpoint
is completely programmed, the display will return to SPSEL. Repeat steps for
each setpoint to be programmed. Select NO to exit the module. The number of
setpoints available is setpoint output card dependent.
Enb-2
-19999
NO
NO
Note: Hysteresis eliminates output chatter at the switch point, while time delay
can be used to prevent false triggering during process transient events.
Select YES to enable Setpoint 2 and access the setup parameters. If NO is
selected, the unit returns to SPSEL and setpoint 2 is disabled.
ON TIME DELAY
SETPOINT ACTION
Act-n «
ª HI-Ub
LO-bL
HI-bL
HI-Ub
tON-n
ª
LO-Ub
=
High Acting, with balanced hysteresis
=
Low Acting, with balanced hysteresis
=
High Acting, with unbalanced hysteresis
=
Low Acting, with unbalanced hysteresis
0.0
to
599.9 Sec
0.0
Enter the time value in seconds that the output is delayed from turning on
after the trigger point is reached. A value of 0.0 allows the meter to update the
output status per the response time listed in the Specifications.
Enter the action for the selected setpoint (output). See Setpoint Output
Figures for a visual detail of each action.
HI-bL
LO-bL
HI-Ub
LO-Ub
«
OFF TIME DELAY
tOF-n
ª
«
0.0
0.0
to
599.9 Sec
Enter the time value in seconds that the output is delayed from turning off
after the trigger point is reached. A value of 0.0 allows the meter to update the
output status per the response time listed in the Specifications.
OUTPUT RESET ACTION
High Acting (Balanced Hys) =
HI-bL
Low Acting (Balanced Hys) =
rSt-n
LO-bL
ª
«
Auto
Auto
LAtCH
L-dLY
Enter the reset action of the output. See figure for details.
Auto = Automatic action; This action allows the output to automatically reset off
at the trigger points per the Setpoint Action shown in Setpoint Output
Figures. The “on” output may be manually reset (off) immediately by the
front panel RST button or user input.The output remains off until the trigger
point is crossed again.
LAtCH = Latch with immediate reset action; This action latches the output on at
High Acting (Unbalanced Hys) =
HI-Ub
Low Acting (Unbalanced Hys) =
the trigger point per the Setpoint Action shown in Setpoint Output Figures.
Latch means that the output can only be turned off by the front panel RST
LO-Ub
10
button or user input manual reset, serial reset command or meter power
cycle. When the user input or RST button is activated (momentary action),
the corresponding “on” output is reset immediately and remains off until the
trigger point is crossed again. (Previously latched alarms will be off if power
up Display Value is lower than setpoint value.)
OUTPUT RESET WITH DISPLAY RESET
rEn-n
ª
«
YES
NO
YES
This parameter enables the RST button or user input to reset the output when
the display is reset.
Note: For this parameter to operate, the RST button or User Input being used
must be set to dSP and the Input value must be displayed. If these conditions are
not met, the output will not reset.
L-dLY = Latch with delay reset action; This action latches the output on at the
trigger point per the Setpoint Action shown in Setpoint Output Figures. Latch
means that the output can only be turned off by the front panel RST button
or user input manual reset, serial reset command or meter power cycle. When
the user input or RST button is activated (momentary action), the meter
delays the event until the corresponding “on” output crosses the trigger off
point. (Previously latched outputs are off if power up Display Value is lower
than setpoint value. During a power cycle, the meter erases a previous L-dLY
reset if it is not activated at power up.)
STANDBY OPERATION
Stb-n
ª
«
NO
NO
YES
When YES, the output is disabled (after a power up) until the trigger point is
crossed. Once the output is on, the output operates normally per the Setpoint
Action and Output Reset action.
CHANGE DISPLAY COLOR w/OUTPUT STATE
ChC-n
ª
«
NO
NO
YES
This parameter enables the backlight 1950 to switch the backlight color when
the output state changes. This parameter is only active for the backlight version.
Setpoint Output Reset Actions
6.5 MODULE 5 - SERIAL SETUP PARAMETERS (5-SEr)
PARAMETER MENU
The Serial Setup Parameters are only active when the optional RS232 or RS485 serial communications module is installed in the meter.
11
Press and hold SEL button
to enter Programming Mode.
1950 PROGRAMMING QUICK OVERVIEW
12
NOTES
13
NOTES
14
NOTES
15